The Orioles announced Tuesday that they have acquired OF TRAYVON ROBINSON from the Seattle Mariners in exchange for INF ROBERT ANDINO.

Robinson, 25, batted .215/.272/.330 (62-288) in 90 major league games over the past two seasons with Seattle. The switch-hitter appeared in 46 games (39 starts) in left field for Seattle in 2012. Robinson hit 73 home runs and stole 169 bases in 754 games over eight minor league seasons after being drafted in the 10th round of the 2005 First Year Player Draft by the Los Angeles Dodgers. Robinson was traded to the Mariners on July 31, 2011 as part of a three-team deal that sent ERIK BEDARD to the Boston Red Sox.

Andino, 28, appeared in 360 games for the Orioles over the past four seasons, batting .239/.302/.326 (263-1100) with 16 homers and 80 RBI. In 2012 for the Orioles, Andino batted .211 (81-384) with a career-high seven home runs and 28 RBI. Andino was acquired from the Florida Marlins prior to the start of the 2009 season.

Schoop, 21, batted .245/.324/.386 in 124 games for Double-A Bowie in 2012. He was the Orioles’ Minor League Player of the Year in 2011 and was signed as a non-drafted free agent out of Curacao on August 20, 2008. Following the 2012 season, Schoop batted .270/.446/.429 with two home runs and 10 RBI in 21 games in the Arizona Fall League and was selected to play in the league’s All-Star Game, the Rising Stars Game. Schoop was also a mid-season Eastern League All-Star with Bowie in 2012.

Belfiore, 24, was acquired from the Arizona Diamondbacks on May 11, 2012 as the player to be named later in the trade that sent INF JOSH BELL to Arizona on April 21. In 28 relief outings for Double-A Bowie, Belfiore was 5-1 with a 2.85 ERA (47.1IP, 15ER). Belfiore also pitched in the Arizona Fall League and was 1-1 with a 4.38 ERA (12.1IP, 6ER) in 12 outings and was also chosen to play in the Rising Stars Game. Belfiore was selected by the Diamondbacks in the first round (45th overall) in the 2009 First Year Player Draft out of Boston College.

Drake, 25, appeared in three games for Bowie, going 1-1 with a 1.50 ERA (18.0IP, 3ER). He missed most of 2012 after having right shoulder surgery. He was selected in the 43rd round of the 2008 First-Year Player Draft out of the United States Naval Academy.

With these moves, the Orioles now have 40 players on their major league roster.

Following an 18-inning marathon win over the Seattle Mariners and needing an extra arm in the bullpen, the Orioles have promoted top pitching prospect Dylan Bundy to the big leagues.

Ken Rosenthal of FOX Sports is reporting Bundy will be called up to fill a limited role in the bullpen. The Orioles used seven relievers in a combined 12 2/3 innings in the second game of a three-game set in Seattle.

The 19-year-old had been participating in the organization’s instructional league in Sarasota after finishing his first professional season at Double-A Bowie. Bundy made three starts for the Baysox, going 2-0 with a 3.24 earned run average in 16 2/3 innings.

Manager Buck Showalter said at the end of August that the Orioles would not promote Bundy, stating the organization’s preference for him to go to the instructional league in mid-September to work on his command and time to the plate.

In 23 starts split among low Single-A Delmarva, high Single-A Frederick, and Bowie, the right-hander went a combined 9-3 with a 2.08 ERA in 103 2/3 innings. He struck out 119 batters and walked 28, though he struggled more with his command as he climbed the organizational ladder.

Bundy was the fourth overall pick of the 2011 amateur draft and was already on the 40-man roster, meaning the Orioles will not need to make a corresponding roster move.